Happy Button is on the run after Monaco win; Briton saves his slip-up until after big-race joy.
Button was imperious in a Brawn GP car that has won in a park, the dry, the wet, and now around the most famous street track in the world.
It was Button's fifth win in six races, and he joins a pantheon of F1 greats to achieve such a feat, after Alberto Ascari (1952), Juan Manuel Fangio (1954), Jim Clark (1965), Sir Jackie Stewart (1969), Nigel Mansell (1992) and Michael Schumacher (1994, 2002 and 2004).
The 29-year-old also joined another exclusive club, becoming only the sixth Briton in the 60 years of the world championship to take the chequered flag in Monaco.
Stirling Moss, Graham Hill, Sir Jackie Stewart, David Coulthard and Lewis Hamilton have all previously emerged triumphant at the end of the world's most famous motor race, and now Button stands alongside them.
But once the chequered flag had dropped and Button had shouted over the radio to his team "Yeah baby, we've got Monaco!" on his victory lap, he then got carried away with the magnitude of it all.
Instead of driving his car onto the start/finish straight and in front of the podium, Button instead parked up in a secure area in the pit lane.
Realising his mistake, and with all short cuts blocked, Button was forced to take a 600-metre victory jog around the final corner and onto the straight, waving to the fans as he did so.
With his helmet still on, he will almost certainly have been red-faced beneath it, and not just from the exertions of the race and his unplanned run.
"The run at the end, I don't know. It's a bit of a long time since I've been on the podium at Monaco," said Button, who last finished in the top three in 2004 when he took second place.
"I thought they were directing me in, so I went in with all the other cars, got out and had to make a spectacle of it.
"So I ran around and down the circuit. There was no other way to go. All the other ways were full of people.
"It's amazing how much energy you've got when you cross the line first, but it was a bit embarrassing."
It failed to detract from what was an historic achievement, one he had played down earlier in the week, but only in an effort to ease the pressure.
Now he could let his true feelings spill out, adding: "Be-forthe weekend I said this grand prix doesn't mean anything different to any other grand prix, but we all know the truth.
"To win here is fantastic because this circuit is very different to anything else, with the last two laps the most enjoyable laps of my career. I could enjoy the moment.." Results and standings: Page 10, Monday Sport.
Jenson Button salutes the Monaco crowd